The endophytic fungus Colletotrichum tofieldiae enhances plant growth under nitrogen-limited conditions by facilitating nitrogen assimilation and recruiting beneficial bacteria to the roots

v N is crucial for nucleotide, protein and chlorophyll synthesis, etc.The limitation of usable N in soil dramatically affects plant growth and crop yield.v In nature, beneficial microbes, such as bacteria or fungi, can form mutualistic interaction with plants and support plants' N utilization.v How can beneficial microbes confer plant growth promotion (PGP) in a complex, variable conditions as in nature?